[flac-dev] [PATCH] Website comparison + fix IE

[Martijn van Beurden]

On 11-01-13 15:26, Miroslav Lichvar wrote:
> Very nice. I'd like to see the comparison page updated too. I've just 
> few questions on the pdf. Was the comparison done on a 32 or 64-bit 
> system?

All comparisons were done on a 64-bit system. However, I did not see 
much deviation from tests in the past, so I guess there are no codecs 
that take much advantage of it.

> Doesn't using wine negatively affect the performance?

It might indeed affect performance, but theoretically it shouldn't: Wine 
is only an emulation layer for system calls, and as lossless codecs 
usually don't need a lot of system calls compared to raw processing 
power, this should not affect encoding or decoding time much. Josh did 
his comparison on Windows, but on Windows there is no easy way to create 
a ramdisk, which is a problem as current CPUs are much to fast for any 
(non-SSD) harddisk to keep up. I also can't time CPU-time used, only 
real time

> Wouldn't it be better to use a logarithmic scale in the graphs for 
> encoding/decoding times and speeds? 

Yes, it would give a much clearer and fairer picture and I have created 
graphs with logarithmic scales in the past, but I found out that most 
people find it very hard to read those scales and are used to the 
'distorted' view of the linear scale. Things like 1x or 300x speed are 
easier to understand than 1*10^0 and 3 * 10^2, while it is exactly the 
same.

To compensate for this I added 'inverse' graphs to the PDF which show 
CPU usage instead of times realtime speed, but I think that two graphs 
are enough for the "summary" on the website. 4 graphs are too confusing 
I think.